A barrel of water is 7/10 full. After 243 litres are removed, the barrel is 1/4 full. How many litres does the barrel hold when its full?

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A barrel of water is 7/10 full. After 243 litres are removed, the barrel is 1/4 full. How many litres does the barrel hold when its full?

Guest Mar 18, 2015

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Best Answer

+561

+5

Let y = full barrel:

7y/10 - 243 = y/4

Multiply by each denominator to all numbers:

28y - 9720 = 10y

Rearrange:

18y = 9720

And solve:

y = 540 litres

Will85237 Mar 18, 2015

1⁺⁰ Answers

+561

+5

Best Answer

Let y = full barrel:

7y/10 - 243 = y/4

Multiply by each denominator to all numbers:

28y - 9720 = 10y

Rearrange:

18y = 9720

And solve:

y = 540 litres

Will85237 Mar 18, 2015

1 Online Users